Treating fibrous materials or textiles



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Patented 8, 1931' UNITED STATES} PATENT OFFICE JOSEPH Nfi'S SLEIN, OF LUDWIGSEAIEN-OH-TEE-BHDIE, GERMANY, ASSIGNOR TO I. G.

FARBENINDUST'RIE AKTIENGESELLSCHAI'T, OF FBANKFORT-ON-THE-MAIN, GER- MANY, A CORPORATION OF GERMANY ram-rum muons immune on 'rnxmns No Drawing. Application filed January 22, 1926, Serial No. 83,143, and in Germany January 21, '1925.

In many operations or processes to which fibrous materials or textiles are subjected, the diiliculty arises that the materials are not uniformly or not sufliciently or too slowly wetted or penetrated by the preparation or liquid applied to the said materials. In

. some cases the use of soap has more or less ton warps is prepare by a overcome these difiiculties, but in other cases and particularly in sizing no means to overcome them have been suggested.

I havenow found that in sizing operation, the said difliculties can be overcome by the addition of organic sulfonic acids which may be used either as such or in the state of salts. Such sulfonic acids may belong to the aliphatic series such as sulfonated brown coal tar oils, or more suitably to the aromatic series. Among the latter, in eneral, those containing side chains have can found to be most suitable. I may mention as exam les of compounds especially suitable for t ese purposes propyl and butyl derivatives of naphthalene sulfonic acids, also aromatic sulfonic acids substituted by alkylated amino groups, for example dimethyl metanilic acid, diamyl-alpha-naphthylamine sulfonic acid or similar compounds, or other salts. Condensation products of sulfonated phenols or naphthalene and formaldehyde may also be mentioned.

Such sulfonic acids may be used with great advantage in sizing wool, cotton, jute, leather, hair, rayon or artificial silk, paper or other fibrous material of ve etable, animal or artificial origin, or textfies or other articles made thereof.

The sulfonic acids may be employed in connection with other additions, including soap or saponaceous materials.

In sizing operations, the sulfonic acids or their salts may be added to the sizing compound such as lue, gelatine, starch, dextrine' or othersuitab e materials. For example a composition for sizin warps, wpecially cotding to one litre of water, ,from 10 to 20' grammes of potato starch and a solution of from 3 to'8-grammes of butylated naphthalene sulfonic acid sodium salt (obtainable by condensinganaph- .thalene sulfonation mixture with normal butyl alcohol at an elevated temperature) in hot water and boiling for 15 minutes.

My invention is, however, not restricted to the above examples.

I do not lay claim in this application to the process of fulling and to preparations for carrying out this process, such being claimed, in my divisional application Ser. No. 129,087, filed Aug. 13th, 1926 simultaneously with this amendment.

In the appended claims the term sulfonate embracesjsulfonic acids which for the purpose of this invention are considered hydrogen sulfonates.

Now what I claim is:

1. A-preparation suitable for sizing textile materials which comprises a practically water-soluble sizing material and a watersoluble compound of an alkylated aromatic.

sulfonic acid.

2. A preparation suitable for sizing textile materials which comprises a practically water-soluble sizing material-and a watersoluble salt of a naphthalene sulfonic acid substituted by an .alkyl radicle selected from alkyl radicles containing from 3 to 4 carbon my hand.

' JOSEPH NUSSLEIN. 

